激情视频亚洲,成人中文视频,欧美综合视频,欧美第一区第二区

Threaded waterproof breathable valve

Design and dimensions


Product advantages

Use 2 lamps of the same type, and the lighting time lasts 90min.
The internal pressure of the headlight without the waterproof vent valve rises rapidly and eventually stabilizes;
The internal pressure of the headlight using the waterproof vent valve slowly rises and gradually tends to zero.